Using PHP how can I convert this string variable into another form? -

i have huge list of city, country want display them in compact form of country.

so example have following variable

hallands, sweden 

but how can show here meaning after , , space keep 2 letters , capitalize.

hallands, sw ? 

then try this

$str='hallands, sweden';  $str=explode(',',str);  echo $str[0].','.strtoupper(substr($str[1], 0, 2));